Each "Look Back" compilation contains 15 or so of your most-liked photos, statuses, and life events, set to music. Be warned, though: these things are cheesier than a pack of Velveeta. That said, it's been no small undertaking for Facebook to roll this out, with a small team spending months crafting the videos and engineers ensuring that the resources to render hundreds of millions of HD videos were on hand.

You can expect to receive a notification at some point today which will take you to your video, or you can head to this page where it should be waiting for you. [Facebook]